Defect luminescence from thermal donors in silicon: Impact of dopant type and thermal donor concentration

Manjula Siriwardhana, Fiacre E. Rougieux, Daniel MacDonald

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    2 Citations (Scopus)

    Abstract

    Low-temperature photoluminescence spectroscopy is applied to investigate the difference in luminescence spectra in phosphorous doped and boron doped Cz-Si wafers with different concentrations of thermal double donors. The thermal donors were created by annealing the wafers at 450°C for different periods of time. Phosphorous doped and boron doped samples with the same concentration of thermal donors show distinctly different peaks in their photoluminescence spectra. Phosphorous doped samples exhibit a thermal donor related peak at around 0.88 eV, which is not observed in p-type boron doped samples compensated by thermal donors. Instead, the boron doped samples have a distinct peak at around 0.79 eV. The relative intensity of the thermal donor related peak increases monotonically with the thermal donor concentration for the phosphorus-doped samples.

    Original languageEnglish
    Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2652-2654
    Number of pages3
    ISBN (Electronic)9781728161150
    DOIs
    Publication statusPublished - 14 Jun 2020
    Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
    Duration: 15 Jun 202021 Aug 2020

    Publication series

    NameConference Record of the IEEE Photovoltaic Specialists Conference
    Volume2020-June
    ISSN (Print)0160-8371

    Conference

    Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020
    Country/TerritoryCanada
    CityCalgary
    Period15/06/2021/08/20

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